remove sponsor =(

Author: bmatcuk

Diff for: README.md

@@ -417,8 +417,6 @@ ever since. In that time, it has grown into one of the most popular globbing
 libraries in the Go ecosystem. So, if **doublestar** is a useful library in
 your project, consider [sponsoring] my work! I'd really appreciate it!
 
-[![MASV](../sponsors/MASV.png?raw=true)](https://massive.io/)
-
 Thanks for sponsoring me!
 
 ## License